[pmrid (Peter)]

Could anyone tell me which of the grub screws on the back of a RC8 are the pull and which the push screws? I assume they are the usual antagonistic sets.
I've been checking the collimation on my RC8 and see that both the secondary and primary need a tweak but I'm unsure about which is which grub screw on the back (a smaller black one or the slightly larger stainless steel one).

Peter